Visual Illusions - Essay Example

1. Based on the book and what you have learned in the simulation, how can you explain your results? My adjusted length for Müller-Lyer Illusion was approximately 9% less than the correct length so it appears as that the illusion had small impact on my perception of line. Given identical size of lines, our brain concludes angle in line to be closer and computes size constancy on the basis of it. Ponzo Illusion was 62.5% more than the correct length. Ponzo illusion depicts the mind’s tendency to judge an object’s size on the basis of its subject/background.

Our brain adjusts the perceived dimension of an object for its apparent distance. Thus we tend to over lengthen the red bar, and yellow bar to make it equivalent to the illusionary length of yellow bar. My adjusted length for Vertical horizontal illusion was quite close to the correct length so it doesn’t appear that my perception of the vertical line was influenced by illusion. Most people over shorten the vertical line because their perception is influenced by illusion. Poggendorff Illusion was 20.

25 units too near the left line. When we look at the lines our brain over emphasizes the point of intersection. When we look at the figure our brain increases the angle of line and rectangle which then seems like an illusion.2. How does the illusion work, what principles apply? Illusions are often the result of erroneous vision or misjudgment. Mistakes can occur on the basis of distances on which objects are placed, contrasting colors placed in closed vicinity etc. Our brain works on patterns and therefore it finds continuity in whatever our eyes see, which lead to form illusionary patterns.

ReferenceMyers, David G. (n.d.). Exploring Psychology. Retrieved from http://bcs.worthpublishers.com/exploring8e/default.asp#577581__593203__